405 citations · 2.8k across the 23 of their papers we have counts for
23 papers
Magnon-Phonon coupling in FeGeTe
Namrata Bansal, Qili Li, Paul Nufer +4
We study the dynamic coupling of magnons and phonons in single crystals of Fe3GeTe2 (FGT) using inelastic scanning tunneling spectroscopy (ISTS) with an ultra-low temperature scann…
Magnetic domain walls of the van der Waals material FeGeTe
Hung-Hsiang Yang, Namrata Bansal, Philipp Rüßmann +10
Among two-dimensional materials, FeGeTe has come to occupy a very important place owing to its ferromagnetic nature with one of the highest Curie temperatures among known v…
Time-resolved terahertz dynamics in thin films of the topological insulator BiSe
R. Valdés Aguilar, J. Qi, M. Brahlek +7
We use optical pump--THz probe spectroscopy at low temperatures to study the hot carrier response in thin BiSe films of several thicknesses, allowing us to separate the bul…
Transport Properties of Topological Insulators: Band Bending, Bulk Metal-to-Insulator Transition, and Weak Anti-Localization
Matthew Brahlek, Nikesh Koirala, Namrata Bansal +1
We reanalyze some of the critical transport experiments and provide a coherent understanding of the current generation of topological insulators (TIs). Currently TI transport studi…
Robust topological surface states of Bi2Se3 thin films on amorphous SiO2/Si substrate and a large ambipolar gating effect
Namrata Bansal, Nikesh Koirala, Matthew Brahlek +6
The recent emergence of topological insulators (TI) has spurred intensive efforts to grow TI thin films on various substrates. However, little is known about how robust the topolog…
Emergence of decoupled surface transport channels in bulk insulating Bi2Se3 thin films
Matthew Brahlek, Nikesh Koirala, Maryam Salehi +2
In ideal topological insulator (TI) films the bulk state, which is supposed to be insulating, should not provide any electric coupling between the two metallic surfaces. However, t…